﻿X-EAY 
  EXAMI]SrATIO:N" 
  OF 
  PAINTINGS 
  BUREOUGHS 
  533 
  

  

  appeal 
  in 
  connoisseurship, 
  but 
  has 
  shown 
  a 
  capacity 
  to 
  aid 
  in 
  " 
  diag- 
  

   nostical 
  " 
  work 
  in 
  esthetics. 
  The 
  ilhistrations 
  may 
  emphasize 
  the 
  

   point. 
  The}^ 
  include 
  examples 
  of 
  pictures 
  on 
  panel 
  and 
  on 
  canvas, 
  

   of 
  repainting 
  over 
  a 
  damaged 
  surface, 
  of 
  alterations 
  made 
  by 
  the 
  

   artist 
  and 
  alterations 
  made 
  by 
  some 
  one 
  else 
  at 
  a 
  later 
  time. 
  The 
  X 
  

   ray 
  of 
  a 
  forgery 
  is 
  also 
  reproduced 
  to 
  show 
  how 
  definitely 
  chemical 
  

   colors 
  are 
  penetrated, 
  even 
  when 
  those 
  colors 
  appear 
  genuinely 
  old 
  

   to 
  the 
  eye 
  and 
  resist 
  the 
  ordinary 
  tests 
  of 
  a 
  restorer's 
  inquiry. 
  These 
  

   illustrations 
  may 
  do 
  what 
  this 
  brief 
  report 
  can 
  not 
  — 
  ^bring 
  to 
  a 
  focus 
  

   the 
  reasons 
  why 
  the 
  art 
  museum 
  of 
  a 
  large 
  university 
  deems 
  these 
  

   experiments 
  worth 
  a 
  continued 
  effort. 
  

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